Old 01-31-2017, 10:08 PM #1
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Default Dose anybody see anything wrong with this wiring ?

The laser is a 1.3 watt 445nm blue laser using a X-drive V6 1100mA Fixed that does not have a constant ground and the diode in not isolated, the new x-drive should be here today and I just wanted to be as confident as possible that I'm wiring it correctly.....

(it says flexdrive but it's a x-drive)



If there are no objections I'm going with this wiring ?


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"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV

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Old 01-31-2017, 10:33 PM #2
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Default Re: Dose anybody see anything wrong with this wiring ?

What's this, your fifth or sixth thread on the same laser with the same related issue/questions?

For the last time, please keep this all in the one thread. It makes everyone's life easier.
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Old 01-31-2017, 10:35 PM #3
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by diachi View Post
What's this, your fifth or sixth thread on the same laser with the same related issue/questions?

For the last time, please keep this all in the one thread. It makes everyone's life easier.
BUT I have yet to get the answers I'm looking for and I'm running out of time !

Please don't throw "for the last time" at me because I am just trying to get the answers I need !
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"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV

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Old 01-31-2017, 10:48 PM #4
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by Accutronitis View Post
BUT I have yet to get the answers I'm looking for and I'm running out of time !

Please don't throw "for the last time" at me because I am just trying to get the answers I need !

Spreading all of the information across 5 threads just makes it harder for anyone to provide you answers. Not to mention there's lots of build/teardown/repair threads that would already answer your questions.

That wiring looks fine to me as long as there is electrical contact between the LD and the rest of the case.

If that driver has common ground on input and output you can simplify further and just tie the case pin of the LD to the cathode pin of the LD. Someone else that's used one of those drivers can confirm that, I've never used them.
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532nm | Gearbest 303 Pointer | 50mW Metered
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Old 01-31-2017, 10:51 PM #5
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by diachi View Post
Spreading all of the information across 5 threads just makes it harder for anyone to provide you answers. Not to mention there's lots of build/teardown/repair threads that would already answer your questions.

That wiring looks fine to me as long as there is electrical contact between the LD and the rest of the case.

If that driver has common ground on input and output you can simplify further and just tie the case pin of the LD to the cathode pin of the LD. Someone else that's used one of those drivers can confirm that, I've never used them.
All I'm trying to do is get as many members as possible to see the questions I have because MANY times different members like to spend most of their time in one forum or another and the right member that could help me with ALL my questions may never see my one thread !

Quote:
Not to mention there's lots of build/teardown/repair threads that would already answer your questions.
And I have looked through a ton of them since Friday and I didn't find what I was looking for so what's a man to do ?

Quote:
That wiring looks fine to me as long as there is electrical contact between the LD and the rest of the case.
Yes it does.

Quote:
If that driver has common ground on input and output you can simplify further and just tie the case pin of the LD to the cathode pin of the LD. Someone else that's used one of those drivers can confirm that, I've never used them.
I don't know if it has a "common ground" but I can tell you that it does not have a "constant ground" ?
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"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV

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Old 01-31-2017, 11:04 PM #6
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by Accutronitis View Post
The laser is a 1.3 watt 445nm blue laser using a X-drive V6 1100mA Fixed that does not have a constant ground and the diode in not isolated, the new x-drive should be here today and I just wanted to be as confident as possible that I'm wiring it correctly.....

(it says flexdrive but it's a x-drive)



If there are no objections I'm going with this wiring ?
Your circuit is not a complete circuit. There is no path from the cathode of the battery to the cathode of the driver...
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Old 01-31-2017, 11:05 PM #7
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by HydroSean View Post
Your circuit is not a complete circuit. There is no path from the cathode of the battery to the cathode of the driver...
The diode case is grounded to the host case, the diagram I borrowed doesn't depict that......

This diagram corrects any issues.........

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"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV

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Old 01-31-2017, 11:07 PM #8
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by HydroSean View Post
There is no path from the cathode of the battery to the cathode of the driver...

Yes there is, the case of the diode will be in contact with the host which is in contact with the cathode of the battery. The case pin of the LD will be connected to the -V connection on the driver (or the LD- if -V and LD- are shared.)
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Old 01-31-2017, 11:09 PM #9
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Default Re: Dose anybody see anything wrong with this wiring ?

diachi I tried to PM you but you don't accept PM's.....
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"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV
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Old 01-31-2017, 11:10 PM #10
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by Accutronitis View Post
The diode case is grounded to the host case, the diagram I borrowed doesn't depict that......
Now you just have to ask yourself if there is a case pin and if there is, then is it isolated from the case of the diode? Note if its case positive or negative.

Last edited by HydroSean; 01-31-2017 at 11:11 PM.
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Old 01-31-2017, 11:16 PM #11
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by HydroSean View Post
Now you just have to ask yourself if there is a case pin and if there is, then is it isolated from the case of the diode? Note if its case positive or negative.
The diode case pin is fused to the diode case, Also I've been told the most all 445nm diodes are case neutral.....
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My very short laser collection (for now)
Thor "Saber" Americanised W/M462 2.2 Watt 462mn Diode with a Super X-Drive at 1.8 Amps DTR G-2 lens JL 10X Beam Expander Class IV
"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV

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Old 01-31-2017, 11:17 PM #12
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by diachi View Post
Yes there is, the case of the diode will be in contact with the host which is in contact with the cathode of the battery. The case pin of the LD will be connected to the -V connection on the driver (or the LD- if -V and LD- are shared.)
Oh then yeah it should work, but why not just cut off the case pin and solder the to the Driver- to the host?

Quote:
Originally Posted by Accutronitis View Post
The diode case is grounded to the host case, the diagram I borrowed doesn't depict that......

This diagram corrects any issues.........

Always put the switch between the battery and the driver. Do not put the switch at the battery cathode

Last edited by HydroSean; 01-31-2017 at 11:57 PM.
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Old 01-31-2017, 11:23 PM #13
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by HydroSean View Post
Oh then yeah it should work, but why not just cut off the case pin and solder the LD- to the Driver-?
it is on the driver output but I've read that drivers that do not have a "constant ground" must have a jumper wire from the host case to the input of the driver and the easiest way to do that is using the case grounded diode's case lead and a jumper wire to the driver power input side neg.....
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Old 01-31-2017, 11:25 PM #14
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by HydroSean View Post
Always put the switch between the battery and the driver. Do not put the switch at the battery cathode
why is that and what will happen ?
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My very short laser collection (for now)
Thor "Saber" Americanised W/M462 2.2 Watt 462mn Diode with a Super X-Drive at 1.8 Amps DTR G-2 lens JL 10X Beam Expander Class IV
"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch W/DTR NUBM44 7+ Watt 450nm Diode In 25mm Copper Module W/Driver (Coming soon Cylindrical Lens Pair Fast Axis Correction) Class IV
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Old 01-31-2017, 11:25 PM #15
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Default Re: Dose anybody see anything wrong with this wiring ?

Quote:
Originally Posted by Accutronitis View Post
it is on the driver output but I've read that drivers that do not have a "constant ground" must have a jumper wire from the host case to the input of the driver and the easiest way to do that is using the case grounded diode's case lead and a jumper wire to the driver power input side neg.....
Looks to me like it will work, just move the switch between the battery and the driver.
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Old 01-31-2017, 11:25 PM #16
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Default Re: Dose anybody see anything wrong with this wiring ?

That is what case pin tends to imply. The very important question that was asked of you was whether the diode sources it's positive or negative from it's case like many of these do.

Also, making multiple threads on the same thing is very frowned upon here or anywhere.
Most people scroll to the bottom to see "latest posts" not only to their favorite section of the forums.

Lastly I am going to suggest putting terms like "how to build a laser" into that magic Google bar at the bottom of any page. All of these questions have been answered many times and if people are not competent enough to find such basic info, I personally don't want them within a few miles of me with a laser.
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